Finding the Fourth Proportional to 290,805.23, 436,208.00 and 91,141.17
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Solution
The fourth proportional to 290,805.23, 436,208.00 and 91,141.17 is: 136,711.80
Step by Step Solution
- Step 1: Write the proportion equation
290,805.23 : 436,208.00 = 91,141.17 : x - Step 2: Convert to fraction form
290,805.23/436,208.00 = 91,141.17/x - Step 3: Cross multiply
290,805.23x = 436,208.00 × 91,141.17 - Step 4: Simplify right side
290,805.23x = 39,756,507,027.65 - Step 5: Solve for x
x = 39,756,507,027.65/290,805.23 - Step 6: Final answer
x = 136,711.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.